These people are just selling fake / scam parts. Their parts DO NOT make your car save fuel or perform better. I purchased a "performance chip" for my car and it did nothing! Not just by word, but by bringing my car to a dyno. Also, fuel consumption increased instead of the contrary.
Sadly I found out about that scam after purchasing the fake product. I found another entry here on www.RipOffReport.com and on many forums that are discussing about it, which is more than proof of my words. I wonder how authorities allow such a practice. I also found that people at www.technicaldomain.net are giving information on how to do this your self and not be scammed (too late for me), so I am not the only one that fell for this.
They are not refunding any money after I returned the part (bogus RMA they use). I work in a Layer's office and know that these scammers are also misleading people with their fake testimonies, which I understand must be corrected now with the new FTC law. Stay away from these guys and you won't be pissed off like I was.